Lab6-Mass, Weight, and Density

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Tarrant County College, Fort Worth *

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1415

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Astronomy

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Dec 6, 2023

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pdf

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6

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Lab 6: Mass, Weight, and Density Name ___ Destiny McDonald __________________________ Date___ 10-3-23________ Lab Partner(s) _____________________________________ Laboratory Report Part A: Density Based on Table 1 (given in the theory) answer the following questions. 1. Which is the densest element? - Gold 2. Which of the elements will float on water and why? - Liquid Hydrogen because it is the lightest. 3. If you have a one-meter cube of aluminum, iron, and lead, which of the following is true? a) All three cubes will have the same density. b) The aluminum cube will be the densest one. c) The lead cube will be the densest one. d) All three cubes will have the same mass. 4. You have an object of density 1050 kg/m 3 . This object will a) Float only on pure water b) Sink in seawater. c) Float only on seawater. d) Sink in both pure and seawater. 5. On heating a sample of gas, its density will a) increase. b) decrease. c) remain the same. d) None of the above. Part B: Your Weight on Other Planets In this lab exercise you will calculate your weight on other planets in our Solar System. You will either gain or lose weight because the gravitational force of each planet is different. How about your mass? Procedure 1. Write down your weight W on the Earth __________ lbs. 2. Fill the relevant mass, M (in kg), and radius, R (half of the diameter) (in km), of each of the planets from Table 2 (given in the theory) in column 2 and column 3, respectively, of the chart below. For the dwarf planet Pluto these values are already filled in. 3. Determine the gravitational acceleration, g , on each planet in column 4 using the formula: g plsnet = GM/R 2 , where capital G = 6.674 × 10 -11 N · m 2 /kg 2 is the Universal Gravitational constant. Show all your work. 4. In column 5, calculate the ratio of the planet's gravity (g planet ) to Earth's gravity (g earth ). Notice the value of g carth , you will also get from column 4. Show all your work.
Lab 6: Mass, Weight, and Density 5. Calculate your weight on other planets by multiplying your weight on Earth by the corresponding g-ratio and write your weight under the picture of each planet. Show all your work.
Lab 6: Mass, Weight, and Density Planet M (Planet’s mass, kg) R = Diameter/2 (Planet's radius, km) g planet (g plsnet = GM/R 2 ) (m/s 2 ) g-ratio (g planet /g earth ) Mercury 3.302 x 10^23 2439.5 3.700x 10^6 N/kg 98795.9184 Venus 4.869 x 10^24 6052 8.86x 10^4n/kg 9040.816327 Earth 5.974 x 10^24 6378 9.79x10^5 n/kg 99897.95918 Mars 6.419 x 10^23 3397 3.71x 10^4 n/kg 3785.714286 Jupiter 1.899 x 10^27 71492 2.466x10^7 N/kg 2516326.531 Saturn 5.685x 10^26 60268 1.04 x 10^5 n/kg 10612.2449 Uranus 8.685 x 10^25 25559 8.86x 10^6 n/kg 904081.6327 Neptune 1.024 x 10^26 24764 1.11x10^7 n/kg 1132653.061 Pluto 1.27 × 10 22 1137 6.55x 10^5 n/kg 66836.73469 Show all your calculations.
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